Renewable insulation for rail-joints.



L. F. & B. G. BRANB.

RENEWABLB INSULATION FOR RAIL JOINTS.

APPLIOATION FILED DEO. 23,l1914.

1,133,920. Patented Mar.3o,1915.

ZSHBETS-"SHEET 1.

L. F. & B. G. BRAINB.

RBNEWABLB NsULATIoN FOR RAIL JoINTs.

Y APPLICATION FILED DEG. 23, 1914. 1,1 33,920.

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isn s'rnfrns Fureur BWEENCE F. BRANE AND BANCROFT G. BRAINE, OF NEW' YORK, N. Y., ASSGNRS TG THE RAIL JOINT COMPANY, 0F NEW YORK, N. Y., A CORPORATICN 0F NEW' YJREL BENEWABLE INSULATION FOR RAIL-JONTS.

Application filed December 23, i914.

.and BANG/nerr G. BizeiNE, citizens of the United States, residing at New York, in the county of New York and State of New l ork,.liaf.f'c invented certain new and useful Improvements in Renewable Insulation for Rail-Joints, of which the following isa specification.

This invention relates to insulation for rail joints, and particularly to the sectional or divided type of insulation'wliich includes an upper piece or section for the .rail head insulation and a lower piece or section -for the rail Flange insulation.

With respect to this type of insulation, the invention has for its primary object a novel improvement in the construction and arrangement of the separate pieces of insulation in order to facilitate and expedite the removal and replacement of the pieces of insulation which are subjected to the greatest wear, While at the same time retaining the feature of an interlock between the separate pieces of insulation and the joint bolts in order to prevent relative longitudinal movement or creeping 'of the insulation when tile pressure and traction of the load is imposed thereon.

Accordingly, the present invention is designed to meet the practical difficulties which have been experienced in applying and rei placing the upper insulation plates of the sectional or divided type of insulation. One

of these' diliculties arises from the fact that when the joint bars and joint bolts are in position, the ordinary rail head insulation plates having bolt enga ing means cannot be inserted from the cnrs of the joint, because ot bolt interference. Another diffeculty experienced in the handling of the ordinary forms of rail head insulation plates exists because the angular shape of these plates prevents the convenient and ready introduction thereof into a rail joint latorally over the upper edges of the joint bars or splices. in fact, the conventional shape of these upper rail head insulation plates requires he instal joint bars to be separated from the rail to such an extent that the bolts could not be fastened horne,'and consequently, under suchl conditions, when these insulation plates are inserted laterally beneath the fail heads, the seine fall below Specification of Letters Patent.

Patented Mar.

Serial No. 8'?8,750.

their proper relative positions with respect to the rai head and the splices.

These diiliculties, incident to the handling of theordinary insulation plates having bolt engaging means, are entirelyobviated by the present invention which provides a simple and practical form of construction that not only locks the insulation plates in position so that they cannot be displaced longitudinelly, but which also provides a practical and economical means whereby the head insulation plates of sectional or divided insulation may conveniently be removed and insei-ted from the ends. of the oint, with U19 )oint bars substantially in proper position and loosely fitting the rails. )teatral-o of the invention not only'pernlitso the ready removal ot a worn piece of insulation.,

but also sci-ves to accurately guide the new piece of insulation to proper place and fit between the joint bar and tile rail, and after the insertion of which a slight manipulation of the bolts is all that is necessary to eornpletely lock the joint,

YVitli these and other objects in vie-v1 which will be apparent to those skilled in `the art, the invention. consists in the novel construction, combination, and arrangement of parts liereinater more. fully described, illustrated and claimed.

The invention is susceptible consider able modification to the minor details of construction and arrangement. of preferable and practical embodimei are shown in the accornimnying u in which Figure 1 is a perspective View of a rail joint, with one joint bar removed, illustrating sectional or div'r insulation con structed in accordant@ itil the present i vention. Fig. i2 is a v .it

i il flSS S. view of the 'joint shown in l? i. at the f ter thereof, plainly illustrating the colt cl arance between the upper insulation ple at the center ot' the join-t, and also illustrating the optional feature of the in-J terlock between the base insulation of the joint. Fig. 3 is a side elevation or" a rail joint with the ioint bar removed and the joint bolts in section,

said view illustrating sectional or divided insulation constructed in accordance with the present invention and showing the man` ner or" inserting or an upper instr the insulating end post and p a ion plete eiidwise.. Fig. 4lV is :1 detail side int rie et the section-il insulation illusf /l'tieati on that inziy be resorted to r ol interlocking the seperate 5 in: ith- 'i the joint. Fig. is

si another modification pref 1t feature of the invention in i nath on end post interloeled ie sieh und hase portions of the io '-i insulation plate. Fig. 6 is a deoss-sectional view on the line j :A showing the lateral and boten the end post with the base i gvlzite. r reference characters designate ending parts throughout the several ol 'the dro'wings.

' iorwerd the invention, no

sind the improved insulation :..pplieohle to the Various forms Aces that are employed in diiterent insulated rail joints, so for illusiosos there shown in Figs. l o drawings n conventional design including the rails R, R, the. nd joint bolts 2, and associated s is n sectional or divided inyonsisting f an upper insulation CIL Oi er insulation plete 4. The and il consist ol separate ns t' insulation Inside oi' fiber insulating material, and the f if these insiilotion plates 3 constitutes ,he rail hond insulation, the same being interjiosed between the joint loer and the under side oi the ruil head. The other oi" ower insulation plate 'l constitutes the buse nsnleton for the joint and is arranged to cover end insulate the rail base flange. Bj' way oit' examplej this lower insulation plate el is shown in the 'forni ot' an insulating cuil' littinrf over the r'til hase ilonge and ineluding at .its upper :i wel) portion 5 fitting the of the rail, and hoi-'ing formed integral Wih its outer edge portion zt buse section il lies the rail hose and CJD lich. und insulfites the sume ironi the rziil supporting nose inonder 7 of the joint har l. u

150 lt is (los zihlr find. necessaryj with sectional or divitle:L insulation of this cherriet.V .,-vide means for preventing relative lone-'iti mail movement or creeping thereof noch ie pressure and trzietion ot the load.

This ninja he provided for in Various Ways,

*for instance in. the expodients shown in Fi l. and S of drawings. In this forni Construction, e lower hose insulation plate el is sho on provided :it the Centr-.il port of wel) portion 5 with an upwardly projetting holding' enr extension 8 which projects ii lo the Center space hetireen the eenpair et joint bolts 2*2 therelij-y provid- "unie interlock between the joint the latter against the dif'olnoement referred to. liiliew'se, the upper insulation plate 3 is provided with bolt engaging means which. in the construction referred to, nin); consist oiI zi holding noteh f) toi-ined in the lower edge et its wel) portion and :ldap-*ed to engage oi er one of the joint bolts which will therefore directlj,7 combine with the said not li torniing interlocking means tlifit seeures the pluto against lor; udinal displacement.

As heretorore noted, the distinctive fenture et' the present invention resides in so constructing the upper rail heed insulation plate 3 that the saine may he rendil'x,v inserted :ind removed ntend troni the ends of the joint, 1Vit-li the joint hars und Center bolts in place. Provision :nude for this manipulation oy forming each upper insulation plate 3 with :i terminal bolt-clearing guide tongue l0. This guide tongue is disposed Within the longitudinal plane of the plate body und project-s longitudinally from on end thereof. .lt is .termed by' shearing oli :t bottom Corner ot the insulation plate, as et ll, sothet the out muy portion thus produced will receive one ol the center holte of the joint and dispose the guide tongue l0 above the plane ot the top line of the holte; Accordingly it will he apparent that this construction permits the endwise insertion or removal of the upper insulation plate in the manner referred readily understood hy reference to the pretersible manner of assembling n rail joint embodying the improved insulation. This operation may be most readily accomplished hy first inserting' the lower hase insulation plates or eulis'l in the erotehes of the joint bars l. zitter which the lutter are placed over the rail flanges und the two Center bolts 2-2 iirst put in platee. These center bolts 2 are then tightened sulileiently to draw the joint hars nearly to plane, hut the end joint bolts which are designated by the reerenre Chur- :ioters .2n-2a are left out ot' the joint, thus leaving a pocket into which the upper insulotion plz-ittV il may he inserted and guided illustrated in Fig. l ot the. drawings.

.ficeording to this modification. the upper insulation plate 3 may be zonde duplex or rerersihle. That is to say. the some can he of duplicate construction et both ends so that each end of the plate wil 'be provided rThis will eelill with a terminal` bolt clearing guiding tongue 10, thereby permitting the plate to be re- Versibly used on either side of the joint. In this form of construction, a single depending holding tongue or web '12 is formed integrally with the central portion of the plate 3, and extends into the space between a pair of the joint bolts, While the interlock for the lower base insulation plate 4 may be made in any suitable manner, as for instance by a central holding projection, as previously referred to. j

Another detail of construction that may be utilized to assist in locking the base insulation in place is that of an interlock between the insulating endl post 14 and the base insulation. In the construction shown in Fig. 2, this may be accomplished by forming the insulating end post at its bottom edge with a bottom locking tenon 15 engaging keeper slots 16 in the base sections 6 of the plates 4. The same idea may be carried forward into the modication Shown in Figs. 5 and 6 wherein the insulating end post is shown as provided, in addition to the tenon 15, with a side locking tenon 17 which intcrlocks within a side keeper slot 18 provided in a central opstanding web portion 20 of the lower base insulation plate 4. In this construction, the said projecting web portion 20 is disposed between the center4 pair of bolts, and therefore coperatcs therewith to prevent longitudinal movement of the base insulation.

Various changes in the form, proportion, and minor details of construction Ina-v be resorted to without sacrificing any of the features or advantages of the` herein described construction and without departing from the spirit of the invention, as expressed in the appended claims.

I claim:

1. An insulated rail joint includin upper and lower insulation plates having olt-engagino means, the upper plate also havin a bolt c earance for endwise insertion in t e joint.

2. An insulated rail joint including upper and lower insulation plates having olt-engaging means, the upper plate also having a shear-ed terminal forming a bolt clearing guide for endwise insertion of the plate.

3. An insulated rail joint including upper and lower insulation plates having bolt-engaging means, the upper plate also having at an upper' corner a longitudinally extending bolt clearing uide tongue to permit endwise insertion o? the plate.

4. An insulated rail joint including an upper rail head insulation plate having boltengaging means, and a sheared terminal forming a bolt-clearing guide to admit of endwise insertion of the plate with certain bolts in position.

An insulated rail upper rail head insulation means interlocking with one bolts, and other guiding means having a clearance from another joint bolt to admit of endwise insertion of the plate with certain bolts in position.

6. An insulated rail joint including an upper rail head insulation plate provided with holding means engaging a joint bolt to prevent longitudinal displacement of the plate, and also provided with a terminal sheared corner forming a longitudinally extended narrowed bolt clearin guide ton e arranged to clear a center bo t of the joint.

An insulated rail joint includin an upper rail head insulation plate havingoltengaging means to prevent longitudinal displacement, and also provided with duplex terminal bolt clearing guide tongues admitting of endwise insertion of the plate with certain of the bolts in position.

8. An insulated rail joint including an upper insulation plate having bolt engaging means, and a terminal belt clearing guide tongue, a lower base insulation plate interlocked with the bolts, and an insulating end post interloclrcd with the hase insulation plate.

An insulated rail joint including upper and lower insulation plates, the plate having holt engigng ineens and e holt clcarani'ie for t dwise insertion in the joint, an inaniating end post, and a lower plate joint including an plate having lhaving interlocking means engaging with the insulating end post.

10. An insulated rail joint including an upper rail head insulationfplate having bolt.' engaging means, and a slieared termina: forming a bolt clearing guide to adr-ut of endwise insertion of'the plate with certain bolts in position, insulating end post, and a lower insulation plate having end post enga ging means.

11. .An insulated rail joint including an upper insulation plate having bolt engaging means and a terminal bolt clearing guide tongue, a lower insulation plate, and an insulating end post interlocked with the lower insulation plate.

In testimony whereof wc hereunto aiiX our signatures in the presence of two witnesses.

LAWRENCE F. BRAIN E. BANCROFT G. BRAINE.

Witnesses:

BENJ. W'OLHAUPTER, E. F. ScHEnMEnHoRN.

of the joint. 

